Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC: B12D3 (2013 2014 2015)
DTC B12D3 : Power Control Unit IG Latch Circuit Error
| DTC Description | DTC |
|---|---|
| B12D3 Power Control Unit IG Latch Circuit Error |
DTC (Power Control Unit)
NOTE: Make sure aftermarket accessories are not installed.
- Problem verification
-1. Clear the DTCs with the HDS.
Do this procedure 5 times:
- Press the engine start/stop button to select the OFF mode
- Wait 10 seconds
- Select the ACC mode
- Wait 10 seconds
- Select the ON mode
- Wait 10 seconds before repeating this procedure
-3. Check for DTCs with the HDS.
DTC Description DTC B12D3 Power Control Unit IG Latch Circuit Error Is DTC B12D3 indicated?
YES
Replace the power control unit .
NO
Intermittent failure, the system is OK at this time.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.